1. Tall rough-leaved perennial with a few large flower heads; central United States
   - showy sunflower

Type of: helianthus, sunflower

• thiazine
• Thibet
• thick
• thick skin
• thick-billed
• thick-billed murre
• thick-bodied
• thick-branched
• thick-footed morel
• thick-haired
• thick-knee
• thick-lipped
• thick-skinned
• thick-skulled
• thick-stemmed
• thick-witted
• thicken
• thickened
• thickener
• thickening
• thicket
• thicket-forming
• thickhead
• thickheaded
• thickly